These entries are queried from radb.net using whois, you can try my project getting these.
:AS11534 route: 170.235.0.0/16 descr: Proxy fbo School District of Philadelphia (AS11534) origin: AS11534 remarks: Windstream Footprint mnt-by: MAINT-AS7029 changed: David.Friant [at] windstream.com 20180420 source: RADB last-modified: 2023-11-13T15:53:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source